Inaccurate performance data for BOB fighters in COD comparing to RL data

[Crumpp]

Emergency +12 lbs./sq. in. Boost Operation: Pilot's Notes, Merlin II, III and IV, 4th Edition, April 1940, page 6.

Which pilot notes?

FYI, The engine manual is not the aircraft installation. Just because an engine is approved does not mean an aircraft is approved. Each installation is unique.

That is why the RAF throughly tested all of the airframes using the Merlin engine when they made the conversion.

The instructions for boost cut out would have been published as part of Phase IV testing. In fact, that is one of the main purposes of Phase IV testing to publish instructions, manuals, and conduct operations.

A good example of that is auto fuel STC's. Just because the engine can run autofuel does not mean an airframe that mounts that engine can use autofuel.